No mound, no hollow, no marker post. The field sits in tillage, and the only sign that anything ancient lies beneath comes when the plough turns the soil and brings up scorched material, dark fragments surfacing briefly before being turned under again. That recurring glimpse of burnt stone and charred earth is, in a quiet way, the whole story.

What the plough is disturbing are the remains of a fulacht fia, a type of prehistoric cooking site found in great numbers across Ireland and Britain. The typical form involves a trough, often timber-lined or stone-lined, filled with water, which was then heated by dropping fire-cracked stones into it. The spent stones were piled to the side, forming the characteristic horseshoe-shaped mound of shattered, blackened rock that survives at many sites. At Killuragh, that mound has long since been levelled, probably through centuries of cultivation, but the underlying deposit of burnt material persists just below the surface, compressed into the tillage layer. Most fulachta fiadh date to the Bronze Age, roughly 1500 to 500 BC, though some have produced earlier or later dates. They tend to cluster near water sources, streams or marshy ground, which supplied the trough. Without excavation, it is impossible to say more about the Killuragh example specifically, but the burnt stone that keeps appearing after each ploughing suggests the deposit remains largely intact beneath the disturbed topsoil.